package com.book.service;

import com.baomidou.mybatisplus.service.IService;
import com.book.entity.Cart;

import java.io.Serializable;
import java.util.List;
import java.util.Map;

public interface CartService extends IService<Cart> {
    List<Cart> getCartsByUId(String uId);
    Map<String,Object> statistics(String uId);
}
